LCOV - code coverage report
Current view: top level - monetdb5/modules/atoms - batxml.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 413 1090 37.9 %
Date: 2024-10-03 20:03:20 Functions: 14 22 63.6 %

          Line data    Source code
       1             : /*
       2             :  * SPDX-License-Identifier: MPL-2.0
       3             :  *
       4             :  * This Source Code Form is subject to the terms of the Mozilla Public
       5             :  * License, v. 2.0.  If a copy of the MPL was not distributed with this
       6             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       7             :  *
       8             :  * Copyright 2024 MonetDB Foundation;
       9             :  * Copyright August 2008 - 2023 MonetDB B.V.;
      10             :  * Copyright 1997 - July 2008 CWI.
      11             :  */
      12             : 
      13             : /*
      14             :  *  M.L. Kersten
      15             :  *  XML multiplexes
      16             :  * SQL/XML requires a handful of instructions.
      17             :  * The collection of routines provided here are map operations
      18             :  * for the atom xml primitives.
      19             :  *
      20             :  * In line with the batcalc module, we assume that if two bat operands
      21             :  * are provided that they are aligned.
      22             :  *
      23             :  * The implementation is focussed on functionality. At a later stage
      24             :  * we may postpone string construction until it is really needed.
      25             :  */
      26             : 
      27             : 
      28             : 
      29             : #include "monetdb_config.h"
      30             : #include "gdk.h"
      31             : #include <ctype.h>
      32             : #include <string.h>
      33             : #ifdef HAVE_LIBXML
      34             : #include <libxml/parser.h>
      35             : #endif
      36             : #include "mal_interpreter.h"
      37             : #include "mal_function.h"
      38             : #include "xml.h"
      39             : 
      40             : #include "mel.h"
      41             : 
      42             : #ifdef HAVE_LIBXML
      43             : 
      44             : #define prepareResult(X,Y,tpe,Z,free)                                                           \
      45             :         do {                                                                                                                    \
      46             :                 (X) = COLnew((Y)->hseqbase, (tpe), BATcount(Y), TRANSIENT);  \
      47             :                 if ((X) == NULL) {                                                                                      \
      48             :                         BBPunfix((Y)->batCacheid);                                                           \
      49             :                         free;                                                                                                   \
      50             :                         throw(MAL, "xml." Z, SQLSTATE(HY013) MAL_MALLOC_FAIL);        \
      51             :                 }                                                                                                                       \
      52             :                 (X)->tsorted =  false;                                                                               \
      53             :                 (X)->trevsorted =  false;                                                                    \
      54             :                 (X)->tnonil = true;                                                                                  \
      55             :                 (X)->tkey = false;                                                                                   \
      56             :         } while (0)
      57             : 
      58             : #define finalizeResult(X,Y,Z)                                   \
      59             :         do {                                                                            \
      60             :                 BATsetcount((Y), (Y)->batCount);             \
      61             :                 *(X) = (Y)->batCacheid;                                      \
      62             :                 BBPkeepref(Y);                                                  \
      63             :                 BBPunfix((Z)->batCacheid);                           \
      64             :         } while (0)
      65             : 
      66             : static str
      67          12 : BATXMLxml2str(bat *ret, const bat *bid)
      68             : {
      69          12 :         BAT *b, *bn;
      70          12 :         BUN p, q;
      71          12 :         BATiter bi;
      72             : 
      73          12 :         if ((b = BATdescriptor(*bid)) == NULL)
      74           0 :                 throw(MAL, "xml.str", INTERNAL_BAT_ACCESS);
      75          12 :         prepareResult(bn, b, TYPE_str, "str", (void) 0);
      76          12 :         bi = bat_iterator(b);
      77          36 :         BATloop(b, p, q) {
      78          24 :                 const char *t = (const char *) BUNtvar(bi, p);
      79             : 
      80          24 :                 if (strNil(t)) {
      81           0 :                         if (bunfastapp_nocheckVAR(bn, t) != GDK_SUCCEED)
      82           0 :                                 goto bunins_failed;
      83           0 :                         bn->tnonil = false;
      84             :                 } else {
      85          24 :                         assert(*t == 'A' || *t == 'C' || *t == 'D');
      86          24 :                         if (bunfastapp_nocheckVAR(bn, t + 1) != GDK_SUCCEED)
      87           0 :                                 goto bunins_failed;
      88             :                 }
      89             :         }
      90          12 :         bat_iterator_end(&bi);
      91          12 :         finalizeResult(ret, bn, b);
      92          12 :         return MAL_SUCCEED;
      93           0 :   bunins_failed:
      94           0 :         bat_iterator_end(&bi);
      95           0 :         BBPunfix(b->batCacheid);
      96           0 :         BBPunfix(bn->batCacheid);
      97           0 :         throw(MAL, "xml.str", OPERATION_FAILED " during bulk coercion");
      98             : }
      99             : 
     100             : static str
     101           0 : BATXMLxmltext(bat *ret, const bat *bid)
     102             : {
     103           0 :         BAT *b, *bn;
     104           0 :         BUN p, q;
     105           0 :         BATiter bi;
     106           0 :         size_t size = 0;
     107           0 :         str buf = NULL;
     108           0 :         xmlDocPtr doc = NULL;
     109           0 :         xmlNodePtr elem;
     110           0 :         str content = NULL;
     111           0 :         const char *err = OPERATION_FAILED;
     112             : 
     113           0 :         if ((b = BATdescriptor(*bid)) == NULL)
     114           0 :                 throw(MAL, "xml.text", INTERNAL_BAT_ACCESS);
     115           0 :         prepareResult(bn, b, TYPE_str, "text", (void) 0);
     116           0 :         bi = bat_iterator(b);
     117           0 :         BATloop(b, p, q) {
     118           0 :                 const char *t = (const char *) BUNtvar(bi, p);
     119           0 :                 size_t len;
     120             : 
     121           0 :                 if (strNil(t)) {
     122           0 :                         if (bunfastapp_nocheckVAR(bn, t) != GDK_SUCCEED)
     123           0 :                                 goto bunins_failed;
     124           0 :                         bn->tnonil = false;
     125           0 :                         continue;
     126             :                 }
     127           0 :                 len = strlen(t);
     128           0 :                 switch (*t) {
     129           0 :                 case 'D':{
     130           0 :                         xmlDocPtr d = xmlParseMemory(t + 1, (int) (len - 1));
     131           0 :                         elem = xmlDocGetRootElement(d);
     132           0 :                         content = (str) xmlNodeGetContent(elem);
     133           0 :                         xmlFreeDoc(d);
     134           0 :                         if (content == NULL) {
     135           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     136           0 :                                 goto bunins_failed;
     137             :                         }
     138             :                         break;
     139             :                 }
     140           0 :                 case 'C':
     141           0 :                         if (doc == NULL)
     142           0 :                                 doc = xmlParseMemory("<doc/>", 6);
     143           0 :                         xmlParseInNodeContext(xmlDocGetRootElement(doc), t + 1,
     144           0 :                                                                   (int) (len - 1), 0, &elem);
     145           0 :                         content = (str) xmlNodeGetContent(elem);
     146           0 :                         xmlFreeNodeList(elem);
     147           0 :                         if (content == NULL) {
     148           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     149           0 :                                 goto bunins_failed;
     150             :                         }
     151             :                         break;
     152           0 :                 case 'A':{
     153           0 :                         str s;
     154             : 
     155           0 :                         if (buf == NULL || size < len) {
     156           0 :                                 size = len + 128;
     157           0 :                                 if (buf != NULL)
     158           0 :                                         GDKfree(buf);
     159           0 :                                 buf = GDKmalloc(size);
     160           0 :                                 if (buf == NULL) {
     161           0 :                                         err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     162           0 :                                         goto bunins_failed;
     163             :                                 }
     164             :                         }
     165           0 :                         s = buf;
     166           0 :                         t++;
     167           0 :                         while (*t) {
     168           0 :                                 if (*t == '"' || *t == '\'') {
     169           0 :                                         char q = *t++;
     170             : 
     171           0 :                                         s += XMLunquotestring(&t, q, s);
     172             :                                 }
     173           0 :                                 t++;
     174             :                         }
     175           0 :                         *s = 0;
     176           0 :                         break;
     177             :                 }
     178             :                 default:
     179           0 :                         assert(*t == 'A' || *t == 'C' || *t == 'D');
     180             :                         if (bunfastapp_nocheckVAR(bn, str_nil) != GDK_SUCCEED)
     181             :                                 goto bunins_failed;
     182             :                         bn->tnonil = false;
     183             :                         continue;
     184             :                 }
     185           0 :                 assert(content != NULL || buf != NULL);
     186           0 :                 if (bunfastapp_nocheckVAR(bn, content != NULL ? content : buf) != GDK_SUCCEED)
     187           0 :                         goto bunins_failed;
     188           0 :                 if (content != NULL)
     189           0 :                         GDKfree(content);
     190           0 :                 content = NULL;
     191             :         }
     192           0 :         bat_iterator_end(&bi);
     193           0 :         finalizeResult(ret, bn, b);
     194           0 :         if (buf != NULL)
     195           0 :                 GDKfree(buf);
     196           0 :         if (doc != NULL)
     197           0 :                 xmlFreeDoc(doc);
     198             :         return MAL_SUCCEED;
     199           0 :   bunins_failed:
     200           0 :         bat_iterator_end(&bi);
     201           0 :         BBPunfix(b->batCacheid);
     202           0 :         BBPunfix(bn->batCacheid);
     203           0 :         if (buf != NULL)
     204           0 :                 GDKfree(buf);
     205           0 :         if (doc != NULL)
     206           0 :                 xmlFreeDoc(doc);
     207           0 :         if (content != NULL)
     208           0 :                 GDKfree(content);
     209           0 :         throw(MAL, "xml.text", "%s", err);
     210             : }
     211             : 
     212             : /*
     213             :  * The core of the activity is str2xml, where the actual strings
     214             :  * are constructed.
     215             :  * To avoid repetitive copying we make sure that the garbage
     216             :  * collector does not remove the xml intermediates.
     217             :  * This way, we know that as long as the xml-variables are not
     218             :  * reused, the complete structure of the xml document(s) are available.
     219             :  * We merely have to collect the pieces.
     220             :  * [FOR LATER, FIRST GO FOR THE EASY IMPLEMENTATION]
     221             :  * XML values are represented by strings already.
     222             :  */
     223             : static str
     224          48 : BATXMLstr2xml(bat *ret, const bat *bid)
     225             : {
     226          48 :         BAT *b, *bn;
     227          48 :         BUN p, q;
     228          48 :         size_t size = BUFSIZ;
     229          48 :         str buf;
     230          48 :         const char *err = OPERATION_FAILED;
     231          48 :         BATiter bi;
     232             : 
     233          48 :         buf = GDKmalloc(size);
     234          48 :         if (buf == NULL)
     235           0 :                 throw(MAL, "xml.str2xml", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     236          48 :         if ((b = BATdescriptor(*bid)) == NULL) {
     237           0 :                 GDKfree(buf);
     238           0 :                 throw(MAL, "xml.xml", INTERNAL_BAT_ACCESS);
     239             :         }
     240          48 :         prepareResult(bn, b, TYPE_xml, "xml", GDKfree(buf));
     241          48 :         bi = bat_iterator(b);
     242         140 :         BATloop(b, p, q) {
     243          92 :                 const char *t = (const char *) BUNtvar(bi, p);
     244          92 :                 size_t len;
     245             : 
     246          92 :                 if (strNil(t)) {
     247           0 :                         if (bunfastapp_nocheckVAR(bn, str_nil) != GDK_SUCCEED)
     248           0 :                                 goto bunins_failed;
     249           0 :                         bn->tnonil = false;
     250           0 :                         continue;
     251             :                 }
     252             : 
     253          92 :                 len = strlen(t) * 6 + 1;
     254          92 :                 if (size < len) {
     255           0 :                         size = len + 128;
     256           0 :                         GDKfree(buf);
     257           0 :                         buf = GDKmalloc(size);
     258           0 :                         if (buf == NULL) {
     259           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     260           0 :                                 goto bunins_failed;
     261             :                         }
     262             :                 }
     263          92 :                 buf[0] = 'C';
     264          92 :                 XMLquotestring(t, buf + 1, size - 1);
     265          92 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     266           0 :                         goto bunins_failed;
     267             :         }
     268          48 :         bat_iterator_end(&bi);
     269          48 :         GDKfree(buf);
     270          48 :         finalizeResult(ret, bn, b);
     271          48 :         return MAL_SUCCEED;
     272           0 :   bunins_failed:
     273           0 :         bat_iterator_end(&bi);
     274           0 :         BBPunfix(b->batCacheid);
     275           0 :         BBPunfix(bn->batCacheid);
     276           0 :         if (buf != NULL)
     277           0 :                 GDKfree(buf);
     278           0 :         throw(MAL, "xml.xml", "%s", err);
     279             : }
     280             : 
     281             : static str
     282           0 : BATXMLdocument(bat *ret, const bat *bid)
     283             : {
     284           0 :         BAT *b, *bn;
     285           0 :         BUN p, q;
     286           0 :         BATiter bi;
     287           0 :         size_t size = BUFSIZ;
     288           0 :         str buf = GDKmalloc(size);
     289           0 :         const char *err = OPERATION_FAILED;
     290             : 
     291           0 :         if (buf == NULL)
     292           0 :                 throw(MAL, "xml.document", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     293           0 :         if ((b = BATdescriptor(*bid)) == NULL) {
     294           0 :                 GDKfree(buf);
     295           0 :                 throw(MAL, "xml.document", INTERNAL_BAT_ACCESS);
     296             :         }
     297           0 :         prepareResult(bn, b, TYPE_xml, "document", GDKfree(buf));
     298           0 :         bi = bat_iterator(b);
     299           0 :         BATloop(b, p, q) {
     300           0 :                 const char *t = (const char *) BUNtvar(bi, p);
     301           0 :                 xmlDocPtr doc;
     302           0 :                 int len;
     303           0 :                 xmlChar *s;
     304             : 
     305           0 :                 if (strNil(t)) {
     306           0 :                         if (bunfastapp_nocheckVAR(bn, str_nil) != GDK_SUCCEED)
     307           0 :                                 goto bunins_failed;
     308           0 :                         bn->tnonil = false;
     309           0 :                         continue;
     310             :                 }
     311           0 :                 len = (int) strlen(t);
     312           0 :                 doc = xmlParseMemory(t, len);
     313           0 :                 if (doc == NULL) {
     314           0 :                         err = OPERATION_FAILED XML_PARSE_ERROR;
     315           0 :                         goto bunins_failed;
     316             :                 }
     317           0 :                 xmlDocDumpMemory(doc, &s, &len);
     318           0 :                 xmlFreeDoc(doc);
     319           0 :                 if ((size_t) len + 2 >= size) {
     320           0 :                         GDKfree(buf);
     321           0 :                         size = (size_t) len + 128;
     322           0 :                         buf = GDKmalloc(size);
     323           0 :                         if (buf == NULL) {
     324           0 :                                 err = MAL_MALLOC_FAIL;
     325           0 :                                 goto bunins_failed;
     326             :                         }
     327             :                 }
     328           0 :                 buf[0] = 'D';
     329           0 :                 strcpy(buf + 1, (char *) s);
     330           0 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     331           0 :                         goto bunins_failed;
     332             :         }
     333           0 :         bat_iterator_end(&bi);
     334           0 :         GDKfree(buf);
     335           0 :         finalizeResult(ret, bn, b);
     336           0 :         return MAL_SUCCEED;
     337           0 :   bunins_failed:
     338           0 :         bat_iterator_end(&bi);
     339           0 :         GDKfree(buf);
     340           0 :         BBPunfix(b->batCacheid);
     341           0 :         BBPunfix(bn->batCacheid);
     342           0 :         throw(MAL, "xml.document", "%s", err);
     343             : }
     344             : 
     345             : static str
     346           0 : BATXMLcontent(bat *ret, const bat *bid)
     347             : {
     348           0 :         BAT *b, *bn;
     349           0 :         BUN p, q;
     350           0 :         BATiter bi;
     351           0 :         xmlDocPtr doc;
     352           0 :         xmlNodePtr root;
     353           0 :         size_t size = BUFSIZ;
     354           0 :         str buf = GDKmalloc(size);
     355           0 :         const char *err = OPERATION_FAILED;
     356           0 :         xmlBufferPtr xbuf;
     357             : 
     358           0 :         if (buf == NULL)
     359           0 :                 throw(MAL, "xml.content", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     360           0 :         if ((b = BATdescriptor(*bid)) == NULL) {
     361           0 :                 GDKfree(buf);
     362           0 :                 throw(MAL, "xml.content", INTERNAL_BAT_ACCESS);
     363             :         }
     364           0 :         doc = xmlParseMemory("<doc/>", 6);
     365           0 :         root = xmlDocGetRootElement(doc);
     366           0 :         prepareResult(bn, b, TYPE_xml, "content", GDKfree(buf));
     367           0 :         bi = bat_iterator(b);
     368           0 :         xbuf = xmlBufferCreate();
     369           0 :         BATloop(b, p, q) {
     370           0 :                 const char *t = (const char *) BUNtvar(bi, p);
     371           0 :                 size_t len;
     372           0 :                 xmlNodePtr elem;
     373           0 :                 xmlParserErrors xerr;
     374           0 :                 const xmlChar *s;
     375             : 
     376           0 :                 if (strNil(t)) {
     377           0 :                         if (bunfastapp_nocheckVAR(bn, str_nil) != GDK_SUCCEED)
     378           0 :                                 goto bunins_failed;
     379           0 :                         bn->tnonil = false;
     380           0 :                         continue;
     381             :                 }
     382           0 :                 len = strlen(t);
     383           0 :                 xerr = xmlParseInNodeContext(root, t, (int) len, 0, &elem);
     384           0 :                 if (xerr != XML_ERR_OK) {
     385           0 :                         err = XML_PARSE_ERROR;
     386           0 :                         goto bunins_failed;
     387             :                 }
     388           0 :                 xmlNodeDump(xbuf, doc, elem, 0, 0);
     389           0 :                 s = xmlBufferContent(xbuf);
     390           0 :                 len = strlen((const char *) s);
     391           0 :                 if (len + 2 >= size) {
     392           0 :                         GDKfree(buf);
     393           0 :                         size = len + 128;
     394           0 :                         buf = GDKmalloc(size);
     395           0 :                         if (buf == NULL) {
     396           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     397           0 :                                 goto bunins_failed;
     398             :                         }
     399             :                 }
     400           0 :                 buf[0] = 'C';
     401           0 :                 strcpy(buf + 1, (const char *) s);
     402           0 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     403           0 :                         goto bunins_failed;
     404           0 :                 xmlBufferEmpty(xbuf);
     405           0 :                 xmlFreeNodeList(elem);
     406             :         }
     407           0 :         bat_iterator_end(&bi);
     408           0 :         xmlBufferFree(xbuf);
     409           0 :         xmlFreeDoc(doc);
     410           0 :         GDKfree(buf);
     411           0 :         finalizeResult(ret, bn, b);
     412           0 :         return MAL_SUCCEED;
     413           0 :   bunins_failed:
     414           0 :         bat_iterator_end(&bi);
     415           0 :         xmlBufferFree(xbuf);
     416           0 :         xmlFreeDoc(doc);
     417           0 :         if (buf != NULL)
     418           0 :                 GDKfree(buf);
     419           0 :         BBPunfix(b->batCacheid);
     420           0 :         BBPunfix(bn->batCacheid);
     421           0 :         throw(MAL, "xml.document", "%s", err);
     422             : }
     423             : 
     424             : static str
     425           0 : BATXMLisdocument(bat *ret, const bat *bid)
     426             : {
     427           0 :         BAT *b, *bn;
     428           0 :         BUN p, q;
     429           0 :         BATiter bi;
     430             : 
     431           0 :         if ((b = BATdescriptor(*bid)) == NULL)
     432           0 :                 throw(MAL, "xml.isdocument", INTERNAL_BAT_ACCESS);
     433           0 :         prepareResult(bn, b, TYPE_bit, "isdocument", (void) 0);
     434           0 :         bi = bat_iterator(b);
     435           0 :         BATloop(b, p, q) {
     436           0 :                 const char *t = (const char *) BUNtvar(bi, p);
     437           0 :                 xmlDocPtr doc;
     438           0 :                 bit val;
     439             : 
     440           0 :                 if (strNil(t)) {
     441           0 :                         val = bit_nil;
     442           0 :                         bn->tnonil = false;
     443             :                 } else {
     444           0 :                         doc = xmlParseMemory(t, (int) strlen(t));
     445           0 :                         if (doc == NULL) {
     446             :                                 val = 0;
     447             :                         } else {
     448           0 :                                 xmlFreeDoc(doc);
     449           0 :                                 val = 1;
     450             :                         }
     451             :                 }
     452           0 :                 if (bunfastappTYPE(bit, bn, &val) != GDK_SUCCEED) {
     453           0 :                         bat_iterator_end(&bi);
     454           0 :                         BBPunfix(b->batCacheid);
     455           0 :                         BBPunfix(bn->batCacheid);
     456           0 :                         throw(MAL, "xml.isdocument",
     457             :                                   OPERATION_FAILED " During bulk processing");
     458             :                 }
     459             :         }
     460           0 :         bat_iterator_end(&bi);
     461           0 :         finalizeResult(ret, bn, b);
     462           0 :         return MAL_SUCCEED;
     463             : }
     464             : 
     465             : /*
     466             :  * The standard supports specific mappings for
     467             :  * NULL values,i.e. {null,absent,empty,nil,niloncontent)
     468             :  * in the context of an element and forest construction.
     469             :  * The standard should be studied in more detail, because
     470             :  * the syntax(rules) seem ambiguous.
     471             :  * It applies to all components of an element or their
     472             :  * concatenation.
     473             :  *
     474             :  * For the time being, the variaton on XMLtag seems the
     475             :  * most reasonable interpretation.
     476             :  */
     477             : static str
     478           0 : BATXMLoptions(bat *ret, const char *const *name, const char *const *options,
     479             :                           const bat *bid)
     480             : {
     481           0 :         BAT *b, *bn;
     482           0 :         BUN p, q;
     483           0 :         str buf = GDKmalloc(BUFSIZ);
     484           0 :         str val = GDKmalloc(BUFSIZ);
     485           0 :         size_t size = BUFSIZ, len = strlen(*name);
     486           0 :         BATiter bi = (BATiter) {.b = NULL };
     487           0 :         const char *err = OPERATION_FAILED " During bulk options analysis";
     488             : 
     489           0 :         if (val == NULL || buf == NULL) {
     490           0 :                 if (val != NULL)
     491           0 :                         GDKfree(val);
     492           0 :                 if (buf != NULL)
     493           0 :                         GDKfree(buf);
     494           0 :                 throw(MAL, "batxml.options", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     495             :         }
     496           0 :         if ((b = BATdescriptor(*bid)) == NULL) {
     497           0 :                 GDKfree(val);
     498           0 :                 GDKfree(buf);
     499           0 :                 throw(MAL, "xml.options", INTERNAL_BAT_ACCESS);
     500             :         }
     501           0 :         prepareResult(bn, b, TYPE_xml, "options", GDKfree(val);
     502             :                                   GDKfree(buf));
     503             : 
     504           0 :         if (strcmp(*options, "absent") == 0)
     505           0 :                 buf[0] = 0;
     506           0 :         else if (strcmp(*options, "empty") == 0)
     507           0 :                 snprintf(buf, size, "<%s></%s>", *name, *name);
     508           0 :         else if (strcmp(*options, "null") == 0)
     509           0 :                 snprintf(buf, size, "null");
     510           0 :         else if (strcmp(*options, "nil") == 0)
     511           0 :                 snprintf(buf, size, "nil");
     512             :         else {
     513             :                 /*if(strcmp(*options,"niloncontent")==0) */
     514           0 :                 err = SQLSTATE(0 A000) PROGRAM_NYI;
     515           0 :                 goto bunins_failed;
     516             :         }
     517             : 
     518           0 :         snprintf(val, size, "<%s>", *name);
     519           0 :         bi = bat_iterator(b);
     520           0 :         BATloop(b, p, q) {
     521           0 :                 const char *t = (const char *) BUNtvar(bi, p);
     522             : 
     523           0 :                 if (strNil(t)) {
     524           0 :                         if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     525           0 :                                 goto bunins_failed1;
     526             :                 } else {
     527           0 :                         if (strlen(t) > size - 2 * len - 6) {
     528           0 :                                 char *tmp;
     529           0 :                                 size += strlen(t);
     530           0 :                                 tmp = (char *) GDKrealloc(val, size + strlen(t));
     531           0 :                                 if (tmp == NULL) {
     532           0 :                                         err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     533           0 :                                         goto bunins_failed1;
     534             :                                 }
     535             :                                 val = tmp;
     536             :                         }
     537           0 :                         snprintf(val + len + 2, size - len, "%s</%s>", t, *name);
     538           0 :                         if (bunfastapp_nocheckVAR(bn, val) != GDK_SUCCEED)
     539           0 :                                 goto bunins_failed1;
     540             :                 }
     541             :         }
     542           0 :         bat_iterator_end(&bi);
     543           0 :         GDKfree(val);
     544           0 :         GDKfree(buf);
     545           0 :         finalizeResult(ret, bn, b);
     546           0 :         return MAL_SUCCEED;
     547           0 :   bunins_failed1:
     548           0 :         bat_iterator_end(&bi);
     549           0 :   bunins_failed:
     550           0 :         BBPunfix(b->batCacheid);
     551           0 :         BBPunfix(bn->batCacheid);
     552           0 :         if (buf != NULL)
     553           0 :                 GDKfree(buf);
     554           0 :         if (val != NULL)
     555           0 :                 GDKfree(val);
     556           0 :         throw(MAL, "batxml.options", "%s", err);
     557             : }
     558             : 
     559             : static str
     560           1 : BATXMLcomment(bat *ret, const bat *bid)
     561             : {
     562           1 :         BAT *b, *bn;
     563           1 :         BUN p, q;
     564           1 :         size_t size = BUFSIZ;
     565           1 :         str buf = GDKmalloc(size);
     566           1 :         BATiter bi;
     567           1 :         const char *err = OPERATION_FAILED;
     568             : 
     569           1 :         if (buf == NULL)
     570           0 :                 throw(MAL, "xml.comment", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     571           1 :         if ((b = BATdescriptor(*bid)) == NULL) {
     572           0 :                 GDKfree(buf);
     573           0 :                 throw(MAL, "xml.comment", INTERNAL_BAT_ACCESS);
     574             :         }
     575           1 :         prepareResult(bn, b, TYPE_xml, "comment", GDKfree(buf));
     576           1 :         bi = bat_iterator(b);
     577           3 :         BATloop(b, p, q) {
     578           2 :                 const char *t = (const char *) BUNtvar(bi, p);
     579           2 :                 size_t len;
     580             : 
     581           2 :                 if (strNil(t)) {
     582           0 :                         if (bunfastapp_nocheckVAR(bn, str_nil) != GDK_SUCCEED)
     583           0 :                                 goto bunins_failed;
     584           0 :                         bn->tnonil = false;
     585           0 :                         continue;
     586             :                 }
     587           2 :                 if (strstr(t, "--") != NULL) {
     588           0 :                         err = XML_COMMENT_ERROR;
     589           0 :                         goto bunins_failed;
     590             :                 }
     591           2 :                 len = strlen(t);
     592           2 :                 if (len + 9 >= size) {
     593             :                         /* make sure there is enough space */
     594           0 :                         size = len + 128;
     595             :                         /* free/malloc so we don't copy */
     596           0 :                         GDKfree(buf);
     597           0 :                         buf = GDKmalloc(size);
     598           0 :                         if (buf == NULL) {
     599           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     600           0 :                                 goto bunins_failed;
     601             :                         }
     602             :                 }
     603           2 :                 snprintf(buf, size, "C<!--%s-->", t);
     604           2 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     605           0 :                         goto bunins_failed;
     606             :         }
     607           1 :         bat_iterator_end(&bi);
     608           1 :         GDKfree(buf);
     609           1 :         finalizeResult(ret, bn, b);
     610           1 :         return MAL_SUCCEED;
     611           0 :   bunins_failed:
     612           0 :         bat_iterator_end(&bi);
     613           0 :         BBPunfix(b->batCacheid);
     614           0 :         BBPunfix(bn->batCacheid);
     615           0 :         if (buf != NULL)
     616           0 :                 GDKfree(buf);
     617           0 :         throw(MAL, "xml.comment", "%s", err);
     618             : }
     619             : 
     620             : static str
     621           0 : BATXMLparse(bat *ret, const char *const *doccont, const bat *bid,
     622             :                         const char *const *option)
     623             : {
     624           0 :         (void) option;
     625           0 :         if (strcmp(*doccont, "content") == 0)
     626           0 :                 return BATXMLcontent(ret, bid);
     627           0 :         if (strcmp(*doccont, "document") == 0)
     628           0 :                 return BATXMLdocument(ret, bid);
     629           0 :         throw(MAL, "xml.parse",
     630             :                   ILLEGAL_ARGUMENT " <document> or <content> expected");
     631             : }
     632             : 
     633             : static str
     634           0 : BATXMLpi(bat *ret, const char *const *target, const bat *bid)
     635             : {
     636           0 :         BAT *b, *bn;
     637           0 :         BUN p, q;
     638           0 :         size_t size = BUFSIZ;
     639           0 :         str buf;
     640           0 :         BATiter bi;
     641           0 :         size_t tgtlen;
     642           0 :         const char *err = OPERATION_FAILED;
     643             : 
     644           0 :         if (strNil(*target))
     645           0 :                 throw(MAL, "xml.pi", XML_PI_ERROR);
     646           0 :         buf = GDKmalloc(size);
     647           0 :         if (buf == NULL)
     648           0 :                 throw(MAL, "xml.pi", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     649             : 
     650           0 :         tgtlen = strlen(*target) + 6;
     651           0 :         if ((b = BATdescriptor(*bid)) == NULL) {
     652           0 :                 GDKfree(buf);
     653           0 :                 throw(MAL, "xml.pi", INTERNAL_BAT_ACCESS);
     654             :         }
     655           0 :         prepareResult(bn, b, TYPE_xml, "pi", GDKfree(buf));
     656           0 :         bi = bat_iterator(b);
     657           0 :         BATloop(b, p, q) {
     658           0 :                 const char *t = (const char *) BUNtvar(bi, p);
     659           0 :                 size_t len;
     660             : 
     661           0 :                 len = tgtlen;
     662           0 :                 if (!strNil(t))
     663           0 :                         len += strlen(t) * 6 + 1;
     664           0 :                 if (len >= size) {
     665             :                         /* make sure there is enough space */
     666           0 :                         size = len + 128;
     667             :                         /* free/malloc so we don't copy */
     668           0 :                         GDKfree(buf);
     669           0 :                         buf = GDKmalloc(size);
     670           0 :                         if (buf == NULL) {
     671           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     672           0 :                                 goto bunins_failed;
     673             :                         }
     674             :                 }
     675           0 :                 if (strNil(t))
     676           0 :                         snprintf(buf, size, "C<?%s?>", *target);
     677             :                 else {
     678           0 :                         int n = snprintf(buf, size, "C<?%s ", *target);
     679           0 :                         size_t m = XMLquotestring(t, buf + n, size - n);
     680           0 :                         strcpy(buf + n + m, "?>");
     681             :                 }
     682           0 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     683           0 :                         goto bunins_failed;
     684             :         }
     685           0 :         bat_iterator_end(&bi);
     686           0 :         GDKfree(buf);
     687           0 :         finalizeResult(ret, bn, b);
     688           0 :         return MAL_SUCCEED;
     689           0 :   bunins_failed:
     690           0 :         bat_iterator_end(&bi);
     691           0 :         BBPunfix(b->batCacheid);
     692           0 :         BBPunfix(bn->batCacheid);
     693           0 :         if (buf != NULL)
     694           0 :                 GDKfree(buf);
     695           0 :         throw(MAL, "xml.pi", "%s", err);
     696             : }
     697             : 
     698             : static str
     699           1 : BATXMLroot(bat *ret, const bat *bid, const char *const *version,
     700             :                    const char *const *standalone)
     701             : {
     702           1 :         BAT *b, *bn;
     703           1 :         BUN p, q;
     704           1 :         size_t size = BUFSIZ;
     705           1 :         str buf;
     706           1 :         BATiter bi;
     707           1 :         size_t hdrlen;
     708           1 :         const char *err = OPERATION_FAILED;
     709             : 
     710           1 :         hdrlen = 8;
     711           2 :         if (!strNil(*version) && **version) {
     712           1 :                 if (strcmp(*version, "1.0") != 0 && strcmp(*version, "1.1") != 0)
     713           0 :                         throw(MAL, "xml.root", XML_VERSION_ERROR);
     714           1 :                 hdrlen += 11 + strlen(*version);        /* strlen(" version=\"\"") */
     715             :         }
     716           2 :         if (!strNil(*standalone) && **standalone) {
     717           1 :                 if (strcmp(*standalone, "yes") != 0 && strcmp(*standalone, "no") != 0)
     718           0 :                         throw(MAL, "xml.root",
     719             :                                   XML_STANDALONE_ERROR "illegal XML standalone value");
     720           1 :                 hdrlen += 14 + strlen(*standalone);     /* strlen(" standalone=\"\"") */
     721             :         }
     722           1 :         buf = GDKmalloc(size);
     723           1 :         if (buf == NULL)
     724           0 :                 throw(MAL, "xml.root", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     725           1 :         if ((b = BATdescriptor(*bid)) == NULL) {
     726           0 :                 GDKfree(buf);
     727           0 :                 throw(MAL, "xml.pi", INTERNAL_BAT_ACCESS);
     728             :         }
     729           1 :         prepareResult(bn, b, TYPE_xml, "pi", GDKfree(buf));
     730           1 :         bi = bat_iterator(b);
     731           3 :         BATloop(b, p, q) {
     732           2 :                 const char *t = (const char *) BUNtvar(bi, p);
     733           2 :                 size_t len, i;
     734           2 :                 bit isdoc;
     735             : 
     736           2 :                 len = hdrlen;
     737           4 :                 if (!strNil(t))
     738           2 :                         len += strlen(t);
     739           2 :                 if (len >= size) {
     740             :                         /* make sure there is enough space */
     741           0 :                         size = len + 128;
     742             :                         /* free/malloc so we don't copy */
     743           0 :                         GDKfree(buf);
     744           0 :                         buf = GDKmalloc(size);
     745           0 :                         if (buf == NULL) {
     746           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     747           0 :                                 goto bunins_failed;
     748             :                         }
     749             :                 }
     750           2 :                 if (strNil(t)) {
     751           0 :                         strcpy(buf, str_nil);
     752           0 :                         bn->tnonil = false;
     753             :                 } else {
     754           2 :                         strcpy(buf, "D<?xml");
     755           2 :                         i = strlen(buf);
     756           4 :                         if (!strNil(*version) && **version)
     757           2 :                                 i += snprintf(buf + i, len - i, " version=\"%s\"", *version);
     758           4 :                         if (!strNil(*standalone) && **standalone)
     759           2 :                                 i += snprintf(buf + i, len - i, " standalone=\"%s\"",
     760             :                                                           *standalone);
     761           2 :                         snprintf(buf + i, len - i, "?>%s", t + 1);
     762           2 :                         buf++;
     763           2 :                         XMLisdocument(&isdoc, &(const char *){buf});    /* check well-formedness */
     764           2 :                         buf--;
     765           2 :                         if (!isdoc) {
     766           0 :                                 err = XML_NOT_WELL_FORMED;
     767           0 :                                 goto bunins_failed;
     768             :                         }
     769             :                 }
     770           2 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     771           0 :                         goto bunins_failed;
     772             :         }
     773           1 :         bat_iterator_end(&bi);
     774           1 :         GDKfree(buf);
     775           1 :         finalizeResult(ret, bn, b);
     776           1 :         return MAL_SUCCEED;
     777           0 :   bunins_failed:
     778           0 :         bat_iterator_end(&bi);
     779           0 :         BBPunfix(b->batCacheid);
     780           0 :         BBPunfix(bn->batCacheid);
     781           0 :         if (buf != NULL)
     782           0 :                 GDKfree(buf);
     783           0 :         throw(MAL, "xml.root", "%s", err);
     784             : }
     785             : 
     786             : static str
     787          10 : BATXMLattribute(bat *ret, const char *const *name, const bat *bid)
     788             : {
     789          10 :         BAT *b, *bn;
     790          10 :         BUN p, q;
     791          10 :         size_t size = BUFSIZ;
     792          10 :         str buf;
     793          10 :         BATiter bi;
     794          10 :         size_t attrlen;
     795          10 :         const char *err = OPERATION_FAILED;
     796             : 
     797          10 :         if (strNil(*name))
     798           0 :                 throw(MAL, "xml.attribute", XML_ATTRIBUTE_ERROR);
     799          10 :         if (xmlValidateName((xmlChar *) *name, 0) != 0)
     800           0 :                 throw(MAL, "xml.attribute", XML_ATTRIBUTE_INVALID);
     801          10 :         attrlen = strlen(*name) + 5;
     802          10 :         buf = GDKmalloc(size);
     803          10 :         if (buf == NULL)
     804           0 :                 throw(MAL, "xml.attribute", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     805          10 :         if ((b = BATdescriptor(*bid)) == NULL) {
     806           0 :                 GDKfree(buf);
     807           0 :                 throw(MAL, "xml.attribute", INTERNAL_BAT_ACCESS);
     808             :         }
     809          10 :         prepareResult(bn, b, TYPE_xml, "attribute", GDKfree(buf));
     810          10 :         bi = bat_iterator(b);
     811          34 :         BATloop(b, p, q) {
     812          24 :                 const char *t = (const char *) BUNtvar(bi, p);
     813          24 :                 size_t len;
     814             : 
     815          24 :                 len = attrlen;
     816          48 :                 if (!strNil(t))
     817          24 :                         len += strlen(t) * 6 + 1;
     818          24 :                 if (len >= size) {
     819             :                         /* make sure there is enough space */
     820           0 :                         size = len + 128;
     821             :                         /* free/malloc so we don't copy */
     822           0 :                         GDKfree(buf);
     823           0 :                         buf = GDKmalloc(size);
     824           0 :                         if (buf == NULL) {
     825           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     826           0 :                                 goto bunins_failed;
     827             :                         }
     828             :                 }
     829          24 :                 if (strNil(t)) {
     830           0 :                         strcpy(buf, str_nil);
     831           0 :                         bn->tnonil = false;
     832             :                 } else {
     833          24 :                         int n = snprintf(buf, size, "A%s = \"", *name);
     834          24 :                         size_t m = XMLquotestring(t, buf + n, size - n);
     835          24 :                         strcpy(buf + n + m, "\"");
     836             :                 }
     837          24 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     838           0 :                         goto bunins_failed;
     839             :         }
     840          10 :         bat_iterator_end(&bi);
     841          10 :         GDKfree(buf);
     842          10 :         finalizeResult(ret, bn, b);
     843          10 :         return MAL_SUCCEED;
     844           0 :   bunins_failed:
     845           0 :         bat_iterator_end(&bi);
     846           0 :         BBPunfix(b->batCacheid);
     847           0 :         BBPunfix(bn->batCacheid);
     848           0 :         if (buf != NULL)
     849           0 :                 GDKfree(buf);
     850           0 :         throw(MAL, "xml.attribute", "%s", err);
     851             : }
     852             : 
     853             : static str
     854          57 : BATXMLelement(bat *ret, const char *const *name, xml *nspace, xml *attr,
     855             :                           const bat *bid)
     856             : {
     857          57 :         BAT *b, *bn;
     858          57 :         BUN p, q;
     859          57 :         size_t size = BUFSIZ;
     860          57 :         str buf;
     861          57 :         BATiter bi;
     862          57 :         size_t elemlen, namelen;
     863          57 :         const char *err = OPERATION_FAILED;
     864             : 
     865          57 :         if (strNil(*name))
     866           0 :                 throw(MAL, "xml.element", XML_NO_ELEMENT);
     867          57 :         if (xmlValidateName((xmlChar *) *name, 0) != 0)
     868           0 :                 throw(MAL, "xml.element", XML_ATTRIBUTE_INVALID);
     869         106 :         if (nspace && !strNil(*nspace) && **nspace)
     870           0 :                 throw(MAL, "xml.element", XML_NO_NAMESPACE);
     871          57 :         namelen = strlen(*name);
     872          57 :         elemlen = namelen + 5;
     873         106 :         if (nspace && !strNil(*nspace)) {
     874           0 :                 if (**nspace != 'A')
     875           0 :                         throw(MAL, "xml.element", XML_ILLEGAL_NAMESPACE);
     876           0 :                 elemlen += strlen(*nspace);     /* " " + nspace (nspace contains initial 'A' which is replaced by space) */
     877             :         }
     878         106 :         if (attr && !strNil(*attr)) {
     879           0 :                 if (**attr != 'A')
     880           0 :                         throw(MAL, "xml.element", XML_ILLEGAL_ATTRIBUTE);
     881           0 :                 elemlen += strlen(*attr);       /* " " + attr (attr contains initial 'A' which is replaced by space) */
     882             :         }
     883          57 :         buf = GDKmalloc(size);
     884          57 :         if (buf == NULL)
     885           0 :                 throw(MAL, "xml.attribute", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     886          57 :         if ((b = BATdescriptor(*bid)) == NULL) {
     887           0 :                 GDKfree(buf);
     888           0 :                 throw(MAL, "xml.element", INTERNAL_BAT_ACCESS);
     889             :         }
     890          57 :         prepareResult(bn, b, TYPE_xml, "element", GDKfree(buf));
     891          57 :         bi = bat_iterator(b);
     892         170 :         BATloop(b, p, q) {
     893         113 :                 const char *t = (const char *) BUNtvar(bi, p);
     894         113 :                 size_t len;
     895             : 
     896         113 :                 len = elemlen;
     897         226 :                 if (!strNil(t)) {
     898         111 :                         if (*t != 'C') {
     899           0 :                                 err = XML_ILLEGAL_CONTENT;
     900           0 :                                 goto bunins_failed;
     901             :                         }
     902         111 :                         len += strlen(t + 1) + namelen + 2;     /* extra "<", ">", and name ("/" already counted) */
     903             :                 }
     904         113 :                 if (len >= size) {
     905             :                         /* make sure there is enough space */
     906           0 :                         size = len + 128;
     907             :                         /* free/malloc so we don't copy */
     908           0 :                         GDKfree(buf);
     909           0 :                         buf = GDKmalloc(size);
     910           0 :                         if (buf == NULL) {
     911           0 :                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
     912           0 :                                 goto bunins_failed;
     913             :                         }
     914             :                 }
     915         115 :                 if (strNil(t) && (!attr || strNil(*attr))) {
     916           2 :                         strcpy(buf, str_nil);
     917           2 :                         bn->tnonil = false;
     918             :                 } else {
     919         111 :                         int i = snprintf(buf, size, "C<%s", *name);
     920         204 :                         if (nspace && !strNil(*nspace))
     921           0 :                                 i += snprintf(buf + i, size - i, " %s", *nspace + 1);
     922         204 :                         if (attr && !strNil(*attr))
     923           0 :                                 i += snprintf(buf + i, size - i, " %s", *attr + 1);
     924         222 :                         if (!strNil(t))
     925         111 :                                 i += snprintf(buf + i, size - i, ">%s</%s>", t + 1, *name);
     926             :                         else
     927           0 :                                 i += snprintf(buf + i, size - i, "/>");
     928             :                 }
     929         113 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
     930           0 :                         goto bunins_failed;
     931             :         }
     932          57 :         bat_iterator_end(&bi);
     933          57 :         GDKfree(buf);
     934          57 :         finalizeResult(ret, bn, b);
     935          57 :         return MAL_SUCCEED;
     936           0 :   bunins_failed:
     937           0 :         bat_iterator_end(&bi);
     938           0 :         BBPunfix(b->batCacheid);
     939           0 :         BBPunfix(bn->batCacheid);
     940           0 :         if (buf != NULL)
     941           0 :                 GDKfree(buf);
     942           0 :         throw(MAL, "xml.element", "%s", err);
     943             : }
     944             : 
     945             : static str
     946           8 : BATXMLelementSmall(bat *ret, const char *const *name, const bat *bid)
     947             : {
     948           8 :         return BATXMLelement(ret, name, NULL, NULL, bid);
     949             : }
     950             : 
     951             : static str
     952           1 : BATXMLforest(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr pci)
     953             : {
     954           1 :         bat *ret = getArgReference_bat(stk, pci, 0);
     955           1 :         BAT *bn;
     956           1 :         BATiter *bi;
     957           1 :         BUN *p, *q;
     958           1 :         str buf;
     959           1 :         int i;
     960           1 :         size_t offset, len, size = BUFSIZ;
     961           1 :         const char *err = OPERATION_FAILED;
     962             : 
     963           1 :         (void) mb;
     964           1 :         (void) cntxt;
     965           1 :         buf = GDKmalloc(size);
     966           1 :         bi = GDKmalloc(sizeof(BATiter) * pci->argc);
     967           1 :         p = GDKmalloc(sizeof(BUN) * pci->argc);
     968           1 :         q = GDKmalloc(sizeof(BUN) * pci->argc);
     969           1 :         if (buf == NULL || bi == NULL || p == NULL || q == NULL) {
     970           0 :                 if (buf)
     971           0 :                         GDKfree(buf);
     972           0 :                 if (bi)
     973           0 :                         GDKfree(bi);
     974           0 :                 if (p)
     975           0 :                         GDKfree(p);
     976           0 :                 if (q)
     977           0 :                         GDKfree(q);
     978           0 :                 throw(MAL, "xml.forest", SQLSTATE(HY013) MAL_MALLOC_FAIL);
     979             :         }
     980             : 
     981             :         /* collect the admin for the xml elements */
     982           3 :         for (i = pci->retc; i < pci->argc; i++) {
     983           2 :                 BAT *b = BATdescriptor(*getArgReference_bat(stk, pci, i));
     984           2 :                 if (b == NULL) {
     985           0 :                         while (i > pci->retc) {
     986           0 :                                 i--;
     987           0 :                                 b = bi[i].b;
     988           0 :                                 bat_iterator_end(&bi[i]);
     989           0 :                                 BBPunfix(b->batCacheid);
     990             :                         }
     991           0 :                         GDKfree(bi);
     992           0 :                         GDKfree(p);
     993           0 :                         GDKfree(q);
     994           0 :                         GDKfree(buf);
     995           0 :                         throw(MAL, "xml.forest", INTERNAL_BAT_ACCESS);
     996             :                 }
     997           2 :                 bi[i] = bat_iterator(b);
     998           2 :                 p[i] = 0;
     999           2 :                 q[i] = BATcount(bi[i].b);
    1000             :         }
    1001             : 
    1002           1 :         prepareResult(bn, bi[pci->retc].b, TYPE_xml, "forest",
    1003             :                                   for (i = pci->retc; i < pci->argc; i++) {
    1004             :                                   BAT *b = bi[i].b; bat_iterator_end(&bi[i]);
    1005             :                                   BBPunfix(b->batCacheid);}
    1006             :                                   GDKfree(bi); GDKfree(p); GDKfree(q); GDKfree(buf)) ;
    1007             : 
    1008           3 :         while (p[pci->retc] < q[pci->retc]) {
    1009           2 :                 const char *t;
    1010             : 
    1011             :                 /* fetch the elements */
    1012           2 :                 offset = 0;
    1013           2 :                 strcpy(buf, str_nil);
    1014           6 :                 for (i = pci->retc; i < pci->argc; i++) {
    1015           4 :                         int n;
    1016             : 
    1017           4 :                         t = (const char *) BUNtvar(bi[i], p[i]);
    1018           4 :                         if (strNil(t))
    1019           0 :                                 continue;
    1020             : 
    1021           4 :                         if ((len = strlen(t)) >= size - offset) {
    1022           0 :                                 char *tmp;
    1023           0 :                                 size += len + 128;
    1024           0 :                                 tmp = GDKrealloc(buf, size);
    1025           0 :                                 if (tmp == NULL) {
    1026           0 :                                         err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
    1027           0 :                                         goto bunins_failed;
    1028             :                                 }
    1029             :                                 buf = tmp;
    1030             :                         }
    1031           4 :                         if (offset == 0)
    1032           2 :                                 n = snprintf(buf, size, "%s", t);
    1033           2 :                         else if (buf[0] != *t) {
    1034           0 :                                 err = "incompatible values in forest";
    1035           0 :                                 goto bunins_failed;
    1036           2 :                         } else if (buf[0] == 'A')
    1037           0 :                                 n = snprintf(buf + offset, size - offset, " %s", t + 1);
    1038           2 :                         else if (buf[0] == 'C')
    1039           2 :                                 n = snprintf(buf + offset, size - offset, "%s", t + 1);
    1040             :                         else {
    1041           0 :                                 err = "can only combine attributes and element content";
    1042           0 :                                 goto bunins_failed;
    1043             :                         }
    1044           4 :                         offset += n;
    1045             :                 }
    1046           2 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
    1047           0 :                         goto bunins_failed;
    1048           2 :                 if (offset == 0)
    1049           0 :                         bn->tnonil = false;
    1050             : 
    1051           6 :                 for (i = pci->retc; i < pci->argc; i++)
    1052           4 :                         if (bi[i].b)
    1053           4 :                                 p[i]++;
    1054             :         }
    1055           1 :         GDKfree(buf);
    1056           1 :         BATsetcount(bn, bn->batCount);
    1057           1 :         *ret = bn->batCacheid;
    1058           1 :         BBPkeepref(bn);
    1059           3 :         for (i = pci->retc; i < pci->argc; i++) {
    1060           2 :                 BAT *b = bi[i].b;
    1061           2 :                 if (b) {
    1062           2 :                         bat_iterator_end(&bi[i]);
    1063           2 :                         BBPunfix(b->batCacheid);
    1064             :                 }
    1065             :         }
    1066           1 :         GDKfree(bi);
    1067           1 :         GDKfree(p);
    1068           1 :         GDKfree(q);
    1069           1 :         return MAL_SUCCEED;
    1070           0 :   bunins_failed:
    1071           0 :         for (i = pci->retc; i < pci->argc; i++) {
    1072           0 :                 BAT *b = bi[i].b;
    1073           0 :                 if (b) {
    1074           0 :                         bat_iterator_end(&bi[i]);
    1075           0 :                         BBPunfix(b->batCacheid);
    1076             :                 }
    1077             :         }
    1078           0 :         BBPunfix(bn->batCacheid);
    1079           0 :         if (buf != NULL)
    1080           0 :                 GDKfree(buf);
    1081           0 :         GDKfree(bi);
    1082           0 :         GDKfree(p);
    1083           0 :         GDKfree(q);
    1084           0 :         throw(MAL, "xml.forest", "%s", err);
    1085             : }
    1086             : 
    1087             : static str
    1088          33 : BATXMLconcat(bat *ret, const bat *bid, const bat *rid)
    1089             : {
    1090          33 :         BAT *b, *r = 0, *bn;
    1091          33 :         BUN p, q, rp = 0;
    1092          33 :         size_t len, size = BUFSIZ;
    1093          33 :         str buf = GDKmalloc(size);
    1094          33 :         BATiter bi, ri;
    1095          33 :         const char *err = OPERATION_FAILED;
    1096             : 
    1097          33 :         if (buf == NULL)
    1098           0 :                 throw(MAL, "xml.concat", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1099          33 :         b = BATdescriptor(*bid);
    1100          33 :         r = BATdescriptor(*rid);
    1101          33 :         if (b == NULL || r == NULL) {
    1102           0 :                 GDKfree(buf);
    1103           0 :                 BBPreclaim(b);
    1104           0 :                 BBPreclaim(r);
    1105           0 :                 throw(MAL, "xml.concat", INTERNAL_BAT_ACCESS);
    1106             :         }
    1107          33 :         p = 0;
    1108          33 :         q = BATcount(b);
    1109          33 :         rp = 0;
    1110             : 
    1111          33 :         prepareResult(bn, b, TYPE_xml, "concat", GDKfree(buf);
    1112             :                                   BBPunfix(r->batCacheid));
    1113             : 
    1114          33 :         bi = bat_iterator(b);
    1115          33 :         ri = bat_iterator(r);
    1116          94 :         while (p < q) {
    1117          61 :                 const char *t = (const char *) BUNtvar(bi, p);
    1118          61 :                 const char *v = (const char *) BUNtvar(ri, rp);
    1119             : 
    1120          61 :                 len = strlen(t) + strlen(v) + 1;
    1121             : 
    1122          61 :                 if (len >= size) {
    1123           0 :                         GDKfree(buf);
    1124           0 :                         size = len + 128;
    1125           0 :                         buf = GDKmalloc(size);
    1126           0 :                         if (buf == NULL) {
    1127           0 :                                 err = MAL_MALLOC_FAIL;
    1128           0 :                                 goto bunins_failed;
    1129             :                         }
    1130             :                 }
    1131          61 :                 if (strNil(t)) {
    1132           0 :                         if (strNil(v)) {
    1133           0 :                                 strcpy(buf, str_nil);
    1134           0 :                                 bn->tnonil = false;
    1135             :                         } else
    1136           0 :                                 strcpy(buf, v);
    1137             :                 } else {
    1138          61 :                         if (strNil(v))
    1139           2 :                                 strcpy(buf, t);
    1140          59 :                         else if (*t != *v) {
    1141           0 :                                 err = "arguments not compatible";
    1142           0 :                                 goto bunins_failed;
    1143          59 :                         } else if (*t == 'A')
    1144           2 :                                 snprintf(buf, size, "A%s %s", t + 1, v + 1);
    1145          57 :                         else if (*t == 'C')
    1146          57 :                                 snprintf(buf, size, "C%s%s", t + 1, v + 1);
    1147             :                         else {
    1148           0 :                                 err = "can only concatenate attributes and element content";
    1149           0 :                                 goto bunins_failed;
    1150             :                         }
    1151             :                 }
    1152          61 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
    1153           0 :                         goto bunins_failed;
    1154          61 :                 rp++;
    1155          61 :                 p++;
    1156             :         }
    1157          33 :         bat_iterator_end(&bi);
    1158          33 :         bat_iterator_end(&ri);
    1159          33 :         GDKfree(buf);
    1160          33 :         finalizeResult(ret, bn, b);
    1161          33 :         BBPunfix(r->batCacheid);
    1162          33 :         return MAL_SUCCEED;
    1163           0 :   bunins_failed:
    1164           0 :         bat_iterator_end(&bi);
    1165           0 :         bat_iterator_end(&ri);
    1166           0 :         BBPunfix(r->batCacheid);
    1167           0 :         BBPunfix(b->batCacheid);
    1168           0 :         BBPunfix(bn->batCacheid);
    1169           0 :         if (buf != NULL)
    1170           0 :                 GDKfree(buf);
    1171           0 :         throw(MAL, "xml.concat", "%s", err);
    1172             : }
    1173             : 
    1174             : static str
    1175           2 : BATXMLgroup(xml *ret, const bat *bid)
    1176             : {
    1177           2 :         BAT *b;
    1178           2 :         BUN p, q;
    1179           2 :         const char *t;
    1180           2 :         size_t len, size = BUFSIZ, offset;
    1181           2 :         str buf = GDKmalloc(size);
    1182           2 :         BATiter bi;
    1183           2 :         const char *err = NULL;
    1184             : 
    1185           2 :         if (buf == NULL)
    1186           0 :                 throw(MAL, "xml.aggr", SQLSTATE(HY013) MAL_MALLOC_FAIL);
    1187           2 :         if ((b = BATdescriptor(*bid)) == NULL) {
    1188           0 :                 GDKfree(buf);
    1189           0 :                 throw(MAL, "xml.aggr", SQLSTATE(HY002) RUNTIME_OBJECT_MISSING);
    1190             :         }
    1191             : 
    1192           2 :         strcpy(buf, str_nil);
    1193           2 :         offset = 0;
    1194           2 :         bi = bat_iterator(b);
    1195           5 :         BATloop(b, p, q) {
    1196           3 :                 int n;
    1197             : 
    1198           3 :                 t = (const char *) BUNtvar(bi, p);
    1199             : 
    1200           3 :                 if (strNil(t))
    1201           0 :                         continue;
    1202           3 :                 len = strlen(t) + 1;
    1203           3 :                 if (len >= size - offset) {
    1204           0 :                         char *tmp;
    1205           0 :                         size += len + 128;
    1206           0 :                         tmp = GDKrealloc(buf, size);
    1207           0 :                         if (tmp == NULL) {
    1208           0 :                                 err = MAL_MALLOC_FAIL;
    1209           0 :                                 goto failed;
    1210             :                         }
    1211             :                         buf = tmp;
    1212             :                 }
    1213           3 :                 if (offset == 0)
    1214           1 :                         n = snprintf(buf, size, "%s", t);
    1215           2 :                 else if (buf[0] != *t) {
    1216           0 :                         err = "incompatible values in group";
    1217           0 :                         goto failed;
    1218           2 :                 } else if (buf[0] == 'A')
    1219           0 :                         n = snprintf(buf + offset, size - offset, " %s", t + 1);
    1220           2 :                 else if (buf[0] == 'C')
    1221           2 :                         n = snprintf(buf + offset, size - offset, "%s", t + 1);
    1222             :                 else {
    1223           0 :                         err = "can only group attributes and element content";
    1224           0 :                         goto failed;
    1225             :                 }
    1226           3 :                 offset += n;
    1227             :         }
    1228           2 :         bat_iterator_end(&bi);
    1229           2 :         BBPunfix(b->batCacheid);
    1230           2 :         *ret = buf;
    1231           2 :         return MAL_SUCCEED;
    1232           0 :   failed:
    1233           0 :         bat_iterator_end(&bi);
    1234           0 :         BBPunfix(b->batCacheid);
    1235           0 :         if (buf != NULL)
    1236           0 :                 GDKfree(buf);
    1237           0 :         throw(MAL, "xml.aggr", "%s", err);
    1238             : }
    1239             : 
    1240             : static const char *
    1241           2 : BATxmlaggr(BAT **bnp, BAT *b, BAT *g, BAT *e, BAT *s, int skip_nils)
    1242             : {
    1243           2 :         BAT *bn = NULL, *t1, *t2 = NULL;
    1244           2 :         BATiter bi = (BATiter) {.b = NULL };
    1245           2 :         oid min, max;
    1246           2 :         BUN ngrp;
    1247           2 :         BUN nils = 0;
    1248           2 :         struct canditer ci;
    1249           2 :         int isnil;
    1250           2 :         const char *v;
    1251           2 :         const oid *grps, *map;
    1252           2 :         oid mapoff = 0;
    1253           2 :         oid prev;
    1254           2 :         BUN p, q;
    1255           2 :         int freeb = 0, freeg = 0;
    1256           2 :         char *buf = NULL;
    1257           2 :         size_t buflen, maxlen, len;
    1258           2 :         const char *err;
    1259           2 :         char *tmp;
    1260             : 
    1261           2 :         if ((err = BATgroupaggrinit(b, g, e, s, &min, &max, &ngrp, &ci)) !=NULL) {
    1262             :                 return err;
    1263             :         }
    1264           2 :         assert(b->ttype == TYPE_xml);
    1265           2 :         if (BATcount(b) == 0 || ngrp == 0) {
    1266           0 :                 bn = BATconstant(ngrp == 0 ? 0 : min, TYPE_xml, ATOMnilptr(TYPE_xml),
    1267             :                                                  ngrp, TRANSIENT);
    1268           0 :                 if (bn == NULL)
    1269             :                         return MAL_MALLOC_FAIL;
    1270           0 :                 *bnp = bn;
    1271           0 :                 return NULL;
    1272             :         }
    1273           2 :         if (s) {
    1274           0 :                 b = BATproject(s, b);
    1275           0 :                 if (b == NULL) {
    1276           0 :                         err = "internal project failed";
    1277           0 :                         goto out;
    1278             :                 }
    1279           0 :                 freeb = 1;
    1280           0 :                 if (g) {
    1281           0 :                         g = BATproject(s, g);
    1282           0 :                         if (g == NULL) {
    1283           0 :                                 err = "internal project failed";
    1284           0 :                                 goto out;
    1285             :                         }
    1286             :                         freeg = 1;
    1287             :                 }
    1288             :         }
    1289           2 :         if (g && BATtdense(g)) {
    1290             :                 /* singleton groups: return group ID's (g's tail) and original
    1291             :                  * values from b */
    1292           0 :                 bn = VIEWcreate(g->tseqbase, b, 0, BUN_MAX);
    1293           0 :                 if (bn == NULL)
    1294           0 :                         err = GDK_EXCEPTION;
    1295           0 :                 goto out;
    1296             :         }
    1297             : 
    1298           2 :         maxlen = BUFSIZ;
    1299           2 :         if ((buf = GDKmalloc(maxlen)) == NULL) {
    1300           0 :                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
    1301           0 :                 goto out;
    1302             :         }
    1303           2 :         buflen = 0;
    1304           2 :         bn = COLnew(min, TYPE_xml, ngrp, TRANSIENT);
    1305           2 :         if (bn == NULL) {
    1306           0 :                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
    1307           0 :                 goto out;
    1308             :         }
    1309           2 :         bi = bat_iterator(b);
    1310           2 :         if (g) {
    1311             :                 /* stable sort g */
    1312           2 :                 if (BATsort(&t1, &t2, NULL, g, NULL, NULL, false, false, true) != GDK_SUCCEED) {
    1313           0 :                         BBPreclaim(bn);
    1314           0 :                         bn = NULL;
    1315           0 :                         err = GDK_EXCEPTION;
    1316           0 :                         goto out1;
    1317             :                 }
    1318           2 :                 if (freeg)
    1319           0 :                         BBPunfix(g->batCacheid);
    1320           2 :                 g = t1;
    1321           2 :                 freeg = 1;
    1322           2 :                 if (t2->ttype == TYPE_void) {
    1323           2 :                         map = NULL;
    1324           2 :                         mapoff = b->tseqbase;
    1325             :                 } else {
    1326           0 :                         map = (const oid *) Tloc(t2, 0);
    1327             :                 }
    1328           2 :                 grps = (const oid *) Tloc(g, 0);
    1329           2 :                 prev = grps[0];
    1330           2 :                 isnil = 0;
    1331           9 :                 for (p = 0, q = BATcount(g); p <= q; p++) {
    1332           9 :                         if (p == q || grps[p] != prev) {
    1333           5 :                                 while (BATcount(bn) < prev - min) {
    1334           0 :                                         if (bunfastapp_nocheckVAR(bn, str_nil) != GDK_SUCCEED)
    1335           0 :                                                 goto bunins_failed;
    1336           0 :                                         nils++;
    1337             :                                 }
    1338           5 :                                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
    1339           0 :                                         goto bunins_failed;
    1340           5 :                                 nils += strNil(buf);
    1341           5 :                                 strncpy(buf, str_nil, maxlen);
    1342           5 :                                 buflen = 0;
    1343           5 :                                 if (p == q)
    1344             :                                         break;
    1345           3 :                                 prev = grps[p];
    1346           3 :                                 isnil = 0;
    1347             :                         }
    1348           7 :                         if (isnil)
    1349           0 :                                 continue;
    1350           7 :                         v = (const char *) BUNtvar(bi, (map ? (BUN) map[p] : p + mapoff));
    1351           7 :                         if (strNil(v)) {
    1352           0 :                                 if (skip_nils)
    1353           0 :                                         continue;
    1354           0 :                                 strncpy(buf, str_nil, buflen);
    1355           0 :                                 isnil = 1;
    1356             :                         } else {
    1357           7 :                                 len = strlen(v);
    1358           7 :                                 if (len >= maxlen - buflen) {
    1359           0 :                                         maxlen += len + BUFSIZ;
    1360           0 :                                         tmp = GDKrealloc(buf, maxlen);
    1361           0 :                                         if (tmp == NULL) {
    1362           0 :                                                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
    1363           0 :                                                 goto bunins_failed;
    1364             :                                         }
    1365             :                                         buf = tmp;
    1366             :                                 }
    1367           7 :                                 if (buflen == 0) {
    1368           5 :                                         strncpy(buf, v, maxlen);
    1369           5 :                                         buflen += len;
    1370           2 :                                 } else if (buf[0] != v[0]) {
    1371           0 :                                         err = "incompatible values in group";
    1372           0 :                                         goto bunins_failed;
    1373           2 :                                 } else if (buf[0] == 'A') {
    1374           0 :                                         snprintf(buf + buflen, maxlen - buflen, " %s", v + 1);
    1375           0 :                                         buflen += len;
    1376           2 :                                 } else if (buf[0] == 'C') {
    1377           2 :                                         snprintf(buf + buflen, maxlen - buflen, "%s", v + 1);
    1378           2 :                                         buflen += len - 1;
    1379             :                                 } else {
    1380           0 :                                         err = "can only group attributes and element content";
    1381           0 :                                         goto bunins_failed;
    1382             :                                 }
    1383             :                         }
    1384             :                 }
    1385           2 :                 BBPunfix(t2->batCacheid);
    1386           2 :                 t2 = NULL;
    1387             :         } else {
    1388           0 :                 for (p = 0, q = p + BATcount(b); p < q; p++) {
    1389           0 :                         v = (const char *) BUNtvar(bi, p);
    1390           0 :                         if (strNil(v)) {
    1391           0 :                                 if (skip_nils)
    1392           0 :                                         continue;
    1393           0 :                                 strncpy(buf, str_nil, buflen);
    1394           0 :                                 nils++;
    1395           0 :                                 break;
    1396             :                         }
    1397           0 :                         len = strlen(v);
    1398           0 :                         if (len >= maxlen - buflen) {
    1399           0 :                                 maxlen += len + BUFSIZ;
    1400           0 :                                 tmp = GDKrealloc(buf, maxlen);
    1401           0 :                                 if (tmp == NULL) {
    1402           0 :                                         err = SQLSTATE(HY013) MAL_MALLOC_FAIL;
    1403           0 :                                         goto bunins_failed;
    1404             :                                 }
    1405             :                                 buf = tmp;
    1406             :                         }
    1407           0 :                         if (buflen == 0) {
    1408           0 :                                 strncpy(buf, v, maxlen);
    1409           0 :                                 buflen += len;
    1410           0 :                         } else if (buf[0] != v[0]) {
    1411           0 :                                 err = "incompatible values in group";
    1412           0 :                                 goto bunins_failed;
    1413           0 :                         } else if (buf[0] == 'A') {
    1414           0 :                                 snprintf(buf + buflen, maxlen - buflen, " %s", v + 1);
    1415           0 :                                 buflen += len;
    1416           0 :                         } else if (buf[0] == 'C') {
    1417           0 :                                 snprintf(buf + buflen, maxlen - buflen, "%s", v + 1);
    1418           0 :                                 buflen += len - 1;
    1419             :                         } else {
    1420           0 :                                 err = "can only group attributes and element content";
    1421           0 :                                 goto bunins_failed;
    1422             :                         }
    1423             :                 }
    1424           0 :                 if (bunfastapp_nocheckVAR(bn, buf) != GDK_SUCCEED)
    1425           0 :                         goto bunins_failed;
    1426             :         }
    1427           2 :         bn->theap->dirty = true;
    1428           2 :         bn->tnil = nils != 0;
    1429           2 :         bn->tnonil = nils == 0;
    1430           2 :         bn->tsorted = BATcount(bn) <= 1;
    1431           2 :         bn->trevsorted = BATcount(bn) <= 1;
    1432           2 :         bn->tkey = BATcount(bn) <= 1;
    1433             : 
    1434           2 :   out1:
    1435           2 :         bat_iterator_end(&bi);
    1436           2 :   out:
    1437           2 :         BBPreclaim(t2);
    1438           2 :         if (freeb && b)
    1439           0 :                 BBPunfix(b->batCacheid);
    1440           2 :         if (freeg && g)
    1441           2 :                 BBPunfix(g->batCacheid);
    1442           2 :         if (buf)
    1443           2 :                 GDKfree(buf);
    1444           2 :         *bnp = bn;
    1445           2 :         return err;
    1446             : 
    1447           0 :   bunins_failed:
    1448           0 :         bat_iterator_end(&bi);
    1449           0 :         BBPreclaim(bn);
    1450           0 :         bn = NULL;
    1451           0 :         if (err == NULL)
    1452           0 :                 err = SQLSTATE(HY013) MAL_MALLOC_FAIL;  /* insertion into result BAT failed */
    1453           0 :         goto out;
    1454             : }
    1455             : 
    1456             : static str
    1457           2 : AGGRsubxmlcand(bat *retval, const bat *bid, const bat *gid, const bat *eid,
    1458             :                            const bat *sid, const bit *skip_nils)
    1459             : {
    1460           2 :         BAT *b, *g, *e, *s, *bn = NULL;
    1461           2 :         const char *err;
    1462             : 
    1463           2 :         b = BATdescriptor(*bid);
    1464           2 :         g = gid ? BATdescriptor(*gid) : NULL;
    1465           2 :         e = eid ? BATdescriptor(*eid) : NULL;
    1466           2 :         if (b == NULL || (gid != NULL && g == NULL) || (eid != NULL && e == NULL)) {
    1467           0 :                 BBPreclaim(b);
    1468           0 :                 BBPreclaim(g);
    1469           0 :                 BBPreclaim(e);
    1470           0 :                 throw(MAL, "aggr.subxml", SQLSTATE(HY002) RUNTIME_OBJECT_MISSING);
    1471             :         }
    1472           2 :         if (sid && !is_bat_nil(*sid)) {
    1473           0 :                 s = BATdescriptor(*sid);
    1474           0 :                 if (s == NULL) {
    1475           0 :                         BBPunfix(b->batCacheid);
    1476           0 :                         BBPreclaim(g);
    1477           0 :                         BBPreclaim(e);
    1478           0 :                         throw(MAL, "aggr.subxml", SQLSTATE(HY002) RUNTIME_OBJECT_MISSING);
    1479             :                 }
    1480             :         } else {
    1481             :                 s = NULL;
    1482             :         }
    1483           2 :         err = BATxmlaggr(&bn, b, g, e, s, *skip_nils);
    1484           2 :         BBPunfix(b->batCacheid);
    1485           2 :         BBPreclaim(g);
    1486           2 :         BBPreclaim(e);
    1487           2 :         BBPreclaim(s);
    1488           2 :         if (err !=NULL)
    1489           0 :                 throw(MAL, "aggr.subxml", "%s", err);
    1490             : 
    1491           2 :         *retval = bn->batCacheid;
    1492           2 :         BBPkeepref(bn);
    1493           2 :         return MAL_SUCCEED;
    1494             : }
    1495             : 
    1496             : static str
    1497           2 : AGGRsubxml(bat *retval, const bat *bid, const bat *gid, const bat *eid,
    1498             :                    const bit *skip_nils)
    1499             : {
    1500           2 :         return AGGRsubxmlcand(retval, bid, gid, eid, NULL, skip_nils);
    1501             : }
    1502             : 
    1503             : static str
    1504           0 : BATXMLxquery(bat *ret, const bat *bid, const char *const *expr)
    1505             : {
    1506           0 :         (void) ret;
    1507           0 :         (void) bid;
    1508           0 :         (void) expr;
    1509             :         /* use external library to solve this */
    1510           0 :         throw(MAL, "xml.xquery", SQLSTATE(0 A000) PROGRAM_NYI);
    1511             : }
    1512             : 
    1513             : #else
    1514             : 
    1515             : #define NO_LIBXML_FATAL "batxml: MonetDB was built without libxml, but what you are trying to do requires it."
    1516             : 
    1517             : static str
    1518             : BATXMLxml2str(bat *ret, const bat *bid)
    1519             : {
    1520             :         (void) ret;
    1521             :         (void) bid;
    1522             :         return createException(MAL, "batxml.xml2str",
    1523             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1524             : }
    1525             : 
    1526             : static str
    1527             : BATXMLxmltext(bat *ret, const bat *bid)
    1528             : {
    1529             :         (void) ret;
    1530             :         (void) bid;
    1531             :         return createException(MAL, "batxml.xmltext",
    1532             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1533             : }
    1534             : 
    1535             : static str
    1536             : BATXMLstr2xml(bat *ret, const bat *bid)
    1537             : {
    1538             :         (void) ret;
    1539             :         (void) bid;
    1540             :         return createException(MAL, "batxml.str2xml",
    1541             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1542             : }
    1543             : 
    1544             : static str
    1545             : BATXMLdocument(bat *ret, const bat *bid)
    1546             : {
    1547             :         (void) ret;
    1548             :         (void) bid;
    1549             :         return createException(MAL, "batxml.document",
    1550             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1551             : }
    1552             : 
    1553             : static str
    1554             : BATXMLcontent(bat *ret, const bat *bid)
    1555             : {
    1556             :         (void) ret;
    1557             :         (void) bid;
    1558             :         return createException(MAL, "batxml.content",
    1559             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1560             : }
    1561             : 
    1562             : static str
    1563             : BATXMLisdocument(bat *ret, const bat *bid)
    1564             : {
    1565             :         (void) ret;
    1566             :         (void) bid;
    1567             :         return createException(MAL, "batxml.isdocument",
    1568             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1569             : }
    1570             : 
    1571             : static str
    1572             : BATXMLelementSmall(bat *ret, const char *const *name, const bat *bid)
    1573             : {
    1574             :         (void) ret;
    1575             :         (void) name;
    1576             :         (void) bid;
    1577             :         return createException(MAL, "batxml.elementSmall",
    1578             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1579             : }
    1580             : 
    1581             : static str
    1582             : BATXMLoptions(bat *ret, const char *const *name, const char *const *options,
    1583             :                           const bat *bid)
    1584             : {
    1585             :         (void) ret;
    1586             :         (void) name;
    1587             :         (void) options;
    1588             :         (void) bid;
    1589             :         return createException(MAL, "batxml.options",
    1590             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1591             : }
    1592             : 
    1593             : static str
    1594             : BATXMLcomment(bat *ret, const bat *bid)
    1595             : {
    1596             :         (void) ret;
    1597             :         (void) bid;
    1598             :         return createException(MAL, "batxml.comment",
    1599             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1600             : }
    1601             : 
    1602             : static str
    1603             : BATXMLparse(bat *ret, const char *const *doccont, const bat *bid,
    1604             :                         const char *const *option)
    1605             : {
    1606             :         (void) ret;
    1607             :         (void) doccont;
    1608             :         (void) bid;
    1609             :         (void) option;
    1610             :         return createException(MAL, "batxml.parse",
    1611             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1612             : }
    1613             : 
    1614             : static str
    1615             : BATXMLxquery(bat *ret, const bat *bid, const char *const *expr)
    1616             : {
    1617             :         (void) ret;
    1618             :         (void) bid;
    1619             :         (void) expr;
    1620             :         return createException(MAL, "batxml.xquery",
    1621             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1622             : }
    1623             : 
    1624             : static str
    1625             : BATXMLpi(bat *ret, const char *const *tgt, const bat *bid)
    1626             : {
    1627             :         (void) ret;
    1628             :         (void) tgt;
    1629             :         (void) bid;
    1630             :         return createException(MAL, "batxml.pi", SQLSTATE(HY005) NO_LIBXML_FATAL);
    1631             : }
    1632             : 
    1633             : static str
    1634             : BATXMLroot(bat *ret, const bat *bid, const char *const *version,
    1635             :                    const char *const *standalone)
    1636             : {
    1637             :         (void) ret;
    1638             :         (void) bid;
    1639             :         (void) version;
    1640             :         (void) standalone;
    1641             :         return createException(MAL, "batxml.root", SQLSTATE(HY005) NO_LIBXML_FATAL);
    1642             : }
    1643             : 
    1644             : static str
    1645             : BATXMLattribute(bat *ret, const char *const *name, const bat *bid)
    1646             : {
    1647             :         (void) ret;
    1648             :         (void) name;
    1649             :         (void) bid;
    1650             :         return createException(MAL, "batxml.attribute",
    1651             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1652             : }
    1653             : 
    1654             : static str
    1655             : BATXMLelement(bat *ret, const char *const *name, xml *ns, xml *attr,
    1656             :                           const bat *bid)
    1657             : {
    1658             :         (void) ret;
    1659             :         (void) name;
    1660             :         (void) ns;
    1661             :         (void) attr;
    1662             :         (void) bid;
    1663             :         return createException(MAL, "batxml.element",
    1664             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1665             : }
    1666             : 
    1667             : static str
    1668             : BATXMLconcat(bat *ret, const bat *bid, const bat *rid)
    1669             : {
    1670             :         (void) ret;
    1671             :         (void) bid;
    1672             :         (void) rid;
    1673             :         return createException(MAL, "batxml.concat",
    1674             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1675             : }
    1676             : 
    1677             : static str
    1678             : BATXMLforest(Client cntxt, MalBlkPtr mb, MalStkPtr stk, InstrPtr p)
    1679             : {
    1680             :         (void) cntxt;
    1681             :         (void) mb;
    1682             :         (void) stk;
    1683             :         (void) p;
    1684             :         return createException(MAL, "batxml.forest",
    1685             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1686             : }
    1687             : 
    1688             : static str
    1689             : BATXMLgroup(xml *ret, const bat *bid)
    1690             : {
    1691             :         (void) ret;
    1692             :         (void) bid;
    1693             :         return createException(MAL, "batxml.group",
    1694             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1695             : }
    1696             : 
    1697             : static str
    1698             : AGGRsubxmlcand(bat *retval, const bat *bid, const bat *gid, const bat *eid,
    1699             :                            const bat *sid, const bit *skip_nils)
    1700             : {
    1701             :         (void) retval;
    1702             :         (void) bid;
    1703             :         (void) gid;
    1704             :         (void) eid;
    1705             :         (void) sid;
    1706             :         (void) skip_nils;
    1707             :         return createException(MAL, "batxml.subxmlcand",
    1708             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1709             : }
    1710             : 
    1711             : static str
    1712             : AGGRsubxml(bat *retval, const bat *bid, const bat *gid, const bat *eid,
    1713             :                    const bit *skip_nils)
    1714             : {
    1715             :         (void) retval;
    1716             :         (void) bid;
    1717             :         (void) gid;
    1718             :         (void) eid;
    1719             :         (void) skip_nils;
    1720             :         return createException(MAL, "batxml.subxml",
    1721             :                                                    SQLSTATE(HY005) NO_LIBXML_FATAL);
    1722             : }
    1723             : 
    1724             : #endif /* HAVE_LIBXML */
    1725             : 
    1726             : #include "mel.h"
    1727             : mel_func batxml_init_funcs[] = {
    1728             :  command("batxml", "xml", BATXMLstr2xml, false, "Cast the string to an xml compliant string.", args(1,2, batarg("",xml),batarg("src",str))),
    1729             :  command("batxml", "str", BATXMLxml2str, false, "Cast the xml to a string.", args(1,2, batarg("",str),batarg("src",xml))),
    1730             :  command("batxml", "document", BATXMLdocument, false, "Parse the string as an XML document.", args(1,2, batarg("",xml),batarg("src",str))),
    1731             :  command("batxml", "content", BATXMLcontent, false, "Parse the string as XML element content.", args(1,2, batarg("",xml),batarg("src",str))),
    1732             :  command("batxml", "comment", BATXMLcomment, false, "Create an XML comment element.", args(1,2, batarg("",xml),batarg("val",str))),
    1733             :  command("batxml", "parse", BATXMLparse, false, "Parse the XML document or element string values.", args(1,4, batarg("",xml),arg("doccont",str),batarg("val",str),arg("option",str))),
    1734             :  command("batxml", "serialize", BATXMLxml2str, false, "Serialize the XML object to a string.", args(1,2, batarg("",str),batarg("val",xml))),
    1735             :  command("batxml", "text", BATXMLxmltext, false, "Serialize the XML object to a string.", args(1,2, batarg("",str),batarg("val",xml))),
    1736             :  command("batxml", "xquery", BATXMLxquery, false, "Execute the XQuery against the elements.", args(1,3, batarg("",xml),batarg("val",str),arg("expr",str))),
    1737             :  command("batxml", "pi", BATXMLpi, false, "Construct a processing instruction.", args(1,3, batarg("",xml),arg("target",str),batarg("val",xml))),
    1738             :  command("batxml", "attribute", BATXMLattribute, false, "Construct an attribute value pair.", args(1,3, batarg("",xml),arg("name",str),batarg("val",str))),
    1739             :  command("batxml", "element", BATXMLelementSmall, false, "The basic building block for XML elements are namespaces, attributes and a sequence of XML elements. The name space and the attributes may be left unspecified.", args(1,3, batarg("",xml),arg("name",str),batarg("s",xml))),
    1740             :  command("batxml", "options", BATXMLoptions, false, "Create the components including NULL conversions.", args(1,4, batarg("",xml),arg("tag",str),arg("option",str),batarg("left",xml))),
    1741             :  command("batxml", "element", BATXMLelement, false, "The basic building block for XML elements are namespaces, attributes and a sequence of XML elements. The name space and the attributes may be left unspecified(=nil).", args(1,5, batarg("",xml),arg("name",str),arg("ns",xml),arg("attr",xml),batarg("s",xml))),
    1742             :  command("batxml", "concat", BATXMLconcat, false, "Concatenate the XML values.", args(1,3, batarg("",xml),batarg("left",xml),batarg("right",xml))),
    1743             :  pattern("batxml", "forest", BATXMLforest, false, "Construct an element list.", args(1,2, batarg("",xml),batvararg("val",xml))),
    1744             :  command("batxml", "root", BATXMLroot, false, "Construct the root nodes.", args(1,4, batarg("",xml),batarg("val",xml),arg("version",str),arg("standalone",str))),
    1745             :  command("batxml", "isdocument", BATXMLisdocument, false, "Validate the string as a XML document.", args(1,2, batarg("",bit),batarg("val",str))),
    1746             :  command("xml", "aggr", BATXMLgroup, false, "Aggregate the XML values.", args(1,2, arg("",xml),batarg("val",xml))),
    1747             :  command("xml", "subaggr", AGGRsubxml, false, "Grouped aggregation of XML values.", args(1,5, batarg("",xml),batarg("val",xml),batarg("g",oid),batargany("e",1),arg("skip_nils",bit))),
    1748             :  command("xml", "subaggr", AGGRsubxmlcand, false, "Grouped aggregation of XML values with candidates list.", args(1,6, batarg("",xml),batarg("val",xml),batarg("g",oid),batargany("e",1),batarg("s",oid),arg("skip_nils",bit))),
    1749             :  command("batcalc", "xml", BATXMLstr2xml, false, "", args(1,2, batarg("",xml),batarg("src",str))),
    1750             :  { .imp=NULL }
    1751             : };
    1752             : #include "mal_import.h"
    1753             : #ifdef _MSC_VER
    1754             : #undef read
    1755             : #pragma section(".CRT$XCU",read)
    1756             : #endif
    1757         320 : LIB_STARTUP_FUNC(init_batxml_mal)
    1758         320 : { mal_module("batxml", NULL, batxml_init_funcs); }

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